/*绝对定位*/
.main_d {
    position: absolute;
    top:2px;
    bottom:2px;
    right:2px;
    left: 2px;
    /*border: 1px solid red;*/
}



.d_detail02 {
    position: absolute;
    width: 100%;
    top: 1px;
    bottom: 1px;
    /* border: 1px solid darkmagenta;*/
}



